Radial transport fans are mainly used to transport sawdust granulates and other loose materials. The fan designs manufactured by our company have open-type radial transport impellers. This type of impeller is self-cleaning and made exclusively of steel. It therefore has a many times longer service life than a cast aluminium impeller. The dynamically well-balanced impellers allow for long-term trouble-free operation. The basic colour of the fan is blue. The impeller is painted orange. Our transport fans undergo a detailed inspection - each one is switched on after assembly to check for vibrations and residual unbalance. The fan thus prepared is only sent to the customer. At the customer's request, we make radial / centrifugal fans transport in a reinforced version. The spiral casing (collector) is made of thicker logs. Rotor reinforced by thicker blades and special steel more resistant to abrasion.
| Type (chart) | Airflow (m3/s)/(m3/h) | Pressure (Pa) | Power (kW) | Drawing (PDF) |
|---|---|---|---|---|
| WT20 | 0.50/1800 | 1650 | 2.20 | rysunek WT20 |
| WT22.5 | 0,80/2900 | 1800 | 4.00 | rysunek WT22.5 |
| WT25/381 | 1.50/5400 | 1700 | 5.50 | rysunekWT25/381 |
| WT25/410 | 1.67/6000 | 1850 | 7.50 | rysunek WT25/410 |
| WT25/420 | 1.20/4320 | 1800 | 7.50 | rysunek WT25/420 |
| WT31.5 | 2.60/9400 | 3000 | 18.50 | rysunek WT31.5 |
| WT31.5/481 | 1.86/6800 | 2300 | 11.00 | rysunek WT31.5/481 |
| WT35.5 | 2.80/10000 | 4550 | 22.00 | rysunek WT35.5 |
When selecting a centrifugal fan, it is necessary to calculate exactly how much capacity is needed and the pressure loss throughout the pipeline. Cyclones, equipment connected to the extraction, etc. should be taken into account.
The transport of dust or sawdust by means of air is of the pneumatic type. It is a two-phase transport. One phase is air and the other is, for example, dust. Each of these two phases moves at a different speed. The air has a higher velocity in relation to the second phase. The pressure generated by each phase is also different. When calculating the pressure loss and capacity, it is important to remember that the conveying velocity in the channel must be no less than, for example, 16 m/s for dry sawdust and varies for different granules. The minimum transport velocity is defined as follows: it must be greater than the falling velocity of the transported particles.
